SiF_(4) on hydropysis gives X and Y. SiCl_(4) on hydrolysis gives X and Z. Covalency of central atom in Y is C_(1) and that of halogenin Z is C_(2). Then C_(1) + C_(2) is:

SiF_(4) on hydropysis gives X and Y. SiCl_(4) on hydrolysis gives X an

1.	SiF_(4) on hydropysis gives X and Y. SiCl_(4) on hydrolysis gives X and Z. Covalency of central atom in Y is C_(1) and that of halogenin Z is C_(2). Then C_(1) + C_(2) is:
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